Digital current differential system
作者： Birsen Yazici , Emilie Thorbjorg Saulnier , George Edmund Alexander , William James Premerlani , Mark Gerard Adamiak
DOI:
关键词: Mathematics 、 Phasor 、 Explained sum of squares 、 Line (geometry) 、 Sine wave 、 Covariance matrix 、 Residual sum of squares 、 Mathematical analysis 、 Partition of sums of squares 、 Phase (waves) 、 Mathematical optimization
摘要: A method of detecting faults on a power transmission line system includes simultaneously measuring phase current samples at each terminal; calculating real and imaginary phaselets comprising partial sums the samples; for phaselet, respective sum squares sample; over variable size sliding sample window; phasor components from using phaselets, components, to calculate errors between fitted sine wave representative components; variance matrix defining an elliptical uncertainty region; determining whether disturbance has occurred, and, if so, re-initializing phasors terminal falls outside region phase.
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